Do I need to create read-replica as disaster recovery for Multi-AZ RDS deployment

Question

I have an AWS RDS instance deployed with Multi-AZ set as true.

As a disaster-management strategy in case the DB fails, is creating a read-replica in another AZ redundant?

If I create the read replica in another region (Outside the VPC), would that be redundant too?

Answer 1

As a disaster-management strategy in case the DB fails, is creating a read-replica in another AZ redundant?

Yes. RDS read-replicas are only for scaling read queries and they do not offer automatic failover.